Main Rotor Holder Arms, XT Version for ALIGN T-Rex 550/600 Series Helicopters


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  • Regular price R 299.99
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The Main Rotor Holder Arms are designed as a bolt-in upgrade for the latest ALIGN Metal Rotor Holders to optimize the cyclic/collective control geometry for Flybarless flight in conjunction with the DFC (Direct Flight Control) system from ALIGN. By extending the arms further from the central Main Shaft and optimizing the mounting location for perfect, 90 degree alignment to the flight mechanics, increased servo travel and resultant control resolution is observed. The arms were extended to provide a 8-12 point increase in Collective Travel and Cyclic Throw for the Mikado™ VBAR® Flybarless System, as well as increase the resolution for the BeastX® Flybarless System (resultant blue light) and other mainstream systems.

For the ultimate Flybarless Control Mechanics available for the T-Rex 550/600 series, check out the industry-leading KDE Direct T-Rex 550/600 Series XT Main Rotor Head System for full details.

Material: Aluminum 6061-T6

Models: All ALIGN T-Rex 550, 600, and 600N series. Assembly designed for use with the ALIGN 600 DFC Main Rotor Head Upgrade Set (#H60239A) to improve Flybarless resolution.


  • Two (2) T-Rex 550/600 Series Aluminum Main Rotor Holder Arms, XT Version
  • Four (4) M3 x 0.5 x 6 mm Socket Head Cap Screws (Class 12.9)

Finish: Clear anodize, mirror-polish CNC gloss

Weight: 7 g ea. (design is FEA optimized for maximum strength and minimum weight)